Loris Sven Karius (born 22 June 1993) is a German professional footballer who plays as a goalkeeper for Bundesliga club Union Berlin, on loan from Premier League club Liverpool.
Born in Biberach, Karius began his career with Stuttgart before moving to Manchester City in 2009. After two years in Manchester City’s youth system, he returned to Germany with Mainz 05. He established himself as first-choice goalkeeper for the Bundesliga side before transferring to Liverpool in 2016 for a fee of £4.75 million. He represented Germany at youth level.
On 28 September 2020, Karius was loaned to German side Union Berlin for the 2020–21 season. On 22 December 2020, Karius made his debut in 2-3 defeat against SC Paderborn in the German DFB Pokal. On 13 February 2021, he made his first start in the Bundesliga for Union Berlin in a goalless draw against Schalke.